Classical Cassegrain Carbon Truss StellaLyra 12" f/12 M-LRC (OTA) optical tube
StellaLyra Classical Cassegrain 12" f/12 Telescope - Maximum precision for lunar and planetary observation
The StellaLyra Classical Cassegrain 12" f/12 is the ideal choice for those seeking to observe and immortalize lunar and planetary details at high magnification. Its long focal length classic Cassegrain design provides sharp, high-contrast images, perfect for planets, craters and lunar satellite detail, double stars, small nebulae and comets.
The open carbon fiber truss structure ensures extreme stability, rapid thermal equalization and ease of transport, plus a sleek, modern design that stands out in any observatory.
The fixed primary mirror eliminates the image shifts common in focusing in other telescope designs, ensuring accuracy in every observation and photograph.
It includes a 3.25" dual-speed linear focuser, three CNC-machined spacer rings that allow focus extension without flexing, and internal blade-type baffles that reduce stray light to maximize contrast.
The telescope is equipped with a mounting plate Losmandy at the base and another at the top, allowing additional accessories to be added and maintaining mounting versatility.
Technical Characteristics - StellaLyra Classical Cassegrain 12" f/12
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Optical aperture: 304 mm (12") - great light gathering capability for fine details on planets and Moon.
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Focal length: 3648 mm - ideal for high magnification observation and planetary astrophotography.
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Focal ratio: f/12 - provides sharp images with excellent contrast.
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Fixed primary mirror - eliminates image shifts when focusing, ensuring visual and photographic accuracy.
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Primary and secondary quartz mirrors: high thermal stability and minimal optical deformation.
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Primary mirror: parabolic with minimum 95% reflectivity, ensuring bright and detailed images.
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Secondary mirror: 95% minimum reflectivity for maximum optical efficiency.
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Secondary mirror linear obstruction: 33% - optimum balance between contrast and effective aperture.
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Illuminated field diameter: 55 mm - wide field for astrophotography and visual observation projects.
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Multiple blade baffle system: minimizes stray light for maximum contrast and definition.
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3.25" Crayford dual-speed linear focuser: precise and smooth focusing, compatible with cameras and accessories.
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U-type finder base: allows secure mounting of optical finders.
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Losmandy mounting plate (top and bottom): facilitates integration of accessories and guidance systems or cameras.
Focusing Extensions - StellaLyra Classical Cassegrain 12" f/12
The telescope is delivered with three focuser extension rings, CNC machined for maximum precision: 2 x 25 mm and 1 x 50 mm, with matte black interiors that eliminate reflections and improve image contrast.
These extensions allow focus adjustment without introducing flexing or vibrations, facilitating the integration of cameras, high magnification eyepieces or additional filters, maintaining stable and accurate focus in lunar, planetary and astrophotography observation.
What's in the box - StellaLyra Classical Cassegrain 12" f/12
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StellaLyra 12" f/12 OTA (Optical Tube Assembly) Telescope
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2" to 1.25" Adapter
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2 CNC machined 25mm focuser extension rings
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1 x 50mm focuser extension ring CNC machined
Technical Specifications - StellaLyra Classical Cassegrain 12" f/12
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Optical Design: Classical Cassegrain Reflector (M-LRC)
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Aperture: 304 mm (12") - excellent light gathering capability for lunar, planetary and small deep sky objects.
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Focal length: 3648 mm
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Focal ratio: f/12 - perfect for high magnification and planetary astrophotography.
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Primary mirror: parabolic, minimum reflectivity 95%
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Secondary mirror: 95% minimum reflectivity
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Linear obstruction of secondary mirror: 33%
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Illuminated field diameter: 55 mm
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Secondary mirror mount: 4 rod metal Spider with 3 collimation screws for precise alignment
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Focuser: 3.25" dual speed linear Crayford
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Tube weight: 24 kg
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Tube length: 841 mm without focuser (focuser adds 133 mm)
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Focuser extensions included: 2x 25 mm and 1x 50 mm with mat black interiors
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Mounting accessories: 2" to 1.25" adaptor
Classical Cassegrain Carbon Truss StellaLyra 12" f/12 M-LRC optical tube (OTA)
